Toro 95-3878 Lawn Mower Side Discharge Mower V-Belt transfers power to the mower’s cutting system to support consistent blade operation. Designed for compatible 48-inch mower decks, this V-belt works by connecting drive pulleys and transmitting rotational force during mowing. It helps maintain proper blade movement and supports even grass cutting under normal operating conditions. https://www.wholetoolbox.com/toro-95-3878-lawn-mower-side-discharge-mower-v-belt-48/95-3878.html